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5Ecological concepts the contribution of ecology to an understanding of the natural world Ecological concepts the contribution of ecology to an understanding of the natural worldby 57063 Cherrett, J.M. ed., 29. Symposium of the British Ecological Society University College, Londres (RU) 12-13 Abr 1988
Published 1990bibliotecaIICA -
6Origins of pest, parasite, disease and weed problems - (Proceedings of) the 18. Symp. of British Ecological Society Origins of pest, parasite, disease and weed problems - (Proceedings of) the 18. Symp. of British Ecological Societyby Cherrett, J.M., British Ecological Society, Abbot's Ripton, Hunts. eng, British Ecological Society. Symp eng 12 Apr 1976 18 Bangor (UK) 9853, Sagar, G.R.
Published 1977Texto bibliotecaFAO IT